refs: add a generic 'optimize' API

The existing `pack-refs` API is conceptually tied to the 'files'
backend, but its behavior is generic (e.g., it triggers compaction for
reftable). This naming is confusing.

Introduce a new generic refs_optimize() API that dispatches to a
backend-specific implementation via a new 'optimize' vtable method.

This lays the architectural groundwork for different reference backends
(like 'files' and 'reftable') to provide their own storage optimization
logic, which will be called from a single, generic entry point.

Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: shejialuo <shejialuo@gmail.com>
Signed-off-by: Meet Soni <meetsoni3017@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
main
Meet Soni 2025-09-19 13:56:39 +05:30 committed by Junio C Hamano
parent f814da676a
commit 8dfe077fb6
3 changed files with 14 additions and 0 deletions

5
refs.c
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@ -2282,6 +2282,11 @@ int refs_pack_refs(struct ref_store *refs, struct pack_refs_opts *opts)
return refs->be->pack_refs(refs, opts);
}

int refs_optimize(struct ref_store *refs, struct pack_refs_opts *opts)
{
return refs->be->optimize(refs, opts);
}

int peel_iterated_oid(struct repository *r, const struct object_id *base, struct object_id *peeled)
{
if (current_ref_iter &&

6
refs.h
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@ -480,6 +480,12 @@ struct pack_refs_opts {
*/
int refs_pack_refs(struct ref_store *refs, struct pack_refs_opts *opts);

/*
* Optimize the ref store. The exact behavior is up to the backend.
* For the files backend, this is equivalent to packing refs.
*/
int refs_optimize(struct ref_store *refs, struct pack_refs_opts *opts);

/*
* Setup reflog before using. Fill in err and return -1 on failure.
*/

View File

@ -447,6 +447,8 @@ typedef int ref_transaction_commit_fn(struct ref_store *refs,

typedef int pack_refs_fn(struct ref_store *ref_store,
struct pack_refs_opts *opts);
typedef int optimize_fn(struct ref_store *ref_store,
struct pack_refs_opts *opts);
typedef int rename_ref_fn(struct ref_store *ref_store,
const char *oldref, const char *newref,
const char *logmsg);
@ -572,6 +574,7 @@ struct ref_storage_be {
ref_transaction_abort_fn *transaction_abort;

pack_refs_fn *pack_refs;
optimize_fn *optimize;
rename_ref_fn *rename_ref;
copy_ref_fn *copy_ref;